The invention provides a pavement material direct tensile test apparatus with eccentric tension avoided and method thereof, and the apparatus comprises a test part, a detected part installed in the test part, and electromagnetic force control part, wherein, the test part comprises a hinged base on the spherical shape, and a spherical lower hinged base matched with the spherical upper hinged base, and the spherical upper hinged base is installed with a upper link which is connected to a
mechanics test and
simulation testing
machine, and the spherical lower hinged base is connected with a
cast iron block by the lower pull bar, and the test part is installed between the spherical upper hinged base and the spherical lower hinged base; the electromagnetic force control part is connected with the
cast iron block. Because of the flexibly rotary spherical hinged base, in the test process, when the test part is tensioned, the test part can naturally drop depending on gravity, thereby the eccentric force being effected on the detected part during tensile test is avoided, and the test result is more accurate, in addition, the invention has the advantages of simple structure, convenient operation,
economic utility, reliable
test data provision and minimized test error.